P0DDD

Hybrid/EV Battery Cell Balancing Circuit M Stuck On

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Reduced performance of the hybrid system
Reducing electric range
Unstable battery charging
Error message on the dashboard
Increased heating of the battery compartment

Causes

Battery management module (BMS) malfunction
Cell balancing relay stuck
Open or short circuit in the balancing circuit
Control system software error
Contact corrosion in the battery compartment

How to Fix

Battery Management Module (BMS) Diagnostics
Checking the balancing circuit for open/short circuit
Cell balancing relay testing
BMS Software Update
Replacing damaged system components

Related codes

P0DDB P0DDC P0DDE